CUED Publications database

Predicting wheel forces using bearing capacity theory for general planar loads

Hambleton, JP and Stanier, SA (2017) Predicting wheel forces using bearing capacity theory for general planar loads. International Journal of Vehicle Performance, 3. pp. 71-88. ISSN 1745-3194

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This paper assesses the applicability of bearing capacity theory for evaluating the forces generated on wheels operating on clay under steady rolling conditions. Considering advances in bearing capacity theory, in particular the interaction diagrams developed for general loading, a theoretical model for computing the horizontal force or torque from fundamental input parameters such as the vertical force (weight), wheel diameter, and undrained shear strength of the soil is presented. The predictions are compared with existing analytical solutions and data from laboratory testing, and reasonable agreement is demonstrated. The newly proposed model provides a means to predict wheel forces analytically under any operating condition (driven, braked, or towed), provided the contact length and so-called contact angle, which defines the position of the contact interface, can be estimated. The model provides a rigorous, convenient framework for evaluating wheel forces under arbitrary loading and enables a natural physical interpretation of the mobility problem.

Item Type: Article
Depositing User: Cron Job
Date Deposited: 15 Oct 2018 20:17
Last Modified: 01 Apr 2021 04:45
DOI: 10.1504/IJVP.2017.081276